查询词典 underlying database

Federated database is a kind of distributed database.

而联邦数据库是分布式数据库领域的一个分支，它弥补了传统分布式数据库的不足。

The view-making tools of current main database systems do not have generality and most of the user interlaces are not friendly. A generic method on view-making method of database is proposed. The design patterns are fully used in the method.

由于目前主流数据库系统自带的视图生成工具不具有通用性，并且多数用户界面不够友好，因此提出1种基于设计模式的通用数据序视图生成方法。

The methods of the extraction of attributes in AutoCAD database and the interlinking way of ObjectARX with database are expatiated, by which a subsystem for materials collection is developed.

通过对AutoCAD图形中属性信息的存储和提取原理、ObjectARX接口与数据库的互连机制以及动态链表的设计与应用方法的深入研究，成功地实现了AutoCAD图形中的材料自动汇总。

This is the curriculum database operations, including the more commonly used database functions.

这是数据库课程的大作业，包括较为常用的数据库的功能。

This paper is based upon XiShan Colliery Parent Company .The data of DongQu Mine pit ventilation resistance mensuration is combined. And system theory, graph theory, ventilation network technology and computer technology are utilized. According to the reality of coalmine, we think that graph and database is incorporate in mine ventilation system. So based on this, ventilation system standard graph is founded, the tool of ventilation graph to draw is made, the ventilation network calculation is realized, the outcome of the ventilation network calculation is seen on the screen, and opaquing and inquiring of the road parameters and so on. In addition to mine ventilation drawing-database visual management system is developed.

本文基于西山煤矿总公司东曲矿〖东曲矿矿井通风网络计算机管理系统〗科研项目，结合东曲矿矿井通风阻力测定，运用系统理论、图论、通风网络技术及计算机技术，针对煤矿实际，将矿井通风系统中图形和数据库贯穿为一体，创建了通风系统标准图库并编制了通风图形绘制工具，实现了风网解算和解算结果图形显示及巷道参数的修改、查询等功能，开发了矿井通风图形数据可视化管理系统。

Moreover, A hybrid algorithm, ALHybrid, which is made of the algorithm LIDBSO and the algorithm AprioriIpv, is designed. Two algorithm, MQC_Apriori and MQC_LIDBSO, are given to mining multiple level quantitative association rules with item constrains. Two algorithm, PMARⅡ and PMARⅢ, which are based on different sequential mining algorithms, are given for parallelling mining association rules. In order to solve the mining association rules problem when we add a set of data to a database or delete a set of data from a database, two incremental updating algorithm, EUAR and EUAR, are given. Three incremental updating algorithm for association rules mining, DIUAⅠ, DIUAⅡ and DIUAⅢ, are dedigned to solve the three kinds of association rules incremental updating problem in distributed databases.

另外，文中还设计了一个算法LIDBSO与算法AprioriIpv相结合的混合采掘算法ALHybrid；对于多层次、带约束、多值属性关联规则的采掘问题，给出了两个采掘算法：算法MQC_Apriori和算法MQC_LIDBSO；在关联规则的并行采掘方面，还设计了两个基于不同顺序关联规则采掘算法的并行算法：算法PMARⅡ和算法PMARⅢ；在关联规则的增量式更新问题上，还给出了两个改进算法：算法EUAR和算法EUARˉ，分别用于解决当数据库增加或删除一个数据集合时的关联规则增量式更新问题；针对分布式数据库中的关联规则增量式更新的三类问题，提出了三个增量式更新算法：算法DIUA Ⅰ、算法DIUAⅡ和算法DIUAⅢ。

On the basis of that, it further explores the construction and maintenance of spatial database and paves the way for the construction of spatial database for railway.

并在此基础上，进一步探讨了空间数据库的建设和维护等问题，为铁路空间数据库的建设提供了思路。

Thesystem development to Delphi7.0 front end took the development kit,2,000 has carried on the development practice take SQL Server as thebackstage database and the ADO database visit technology, this systemrealized under the onstage processing function visitor registration,the registration revised, prearranges processing, the visitor tradesthe room, the visitor continues, the visitor returns a house, thevisitor ties the account guest room operation and the inquiry service,manager inquires, function and so on guest room establishment, userand jurisdiction, system maintenance.

系统开发以Delphi7.0作为前端开发工具，以SQL Server 2000为后台数据库和ADO数据库访问技术进行了开发实践，该系统实现了前台处理功能下的客人登记、登记修改、预定处理、客人换房、客人续住、客人退房、客人结账客房操作及查询业务、经理查询、客房设置、用户与权限、系统维护等功能。

In database system, normally the database management system will in charge of retrieving and storing of data.

在数据库中，一般存取时的细节是由数据库管理系统管理，应用程序不必了解数据库的软件和硬件的改变。

The multiple-database model is represented by proposals for shared and private database architect rues, checkout and checking of data ...

多个数据库模式是通过共享的和专用的数据库结构来回检查数据的输入结果和输出纤果而体现出来。。。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。